Here's the definition that's on our security deposit page, which doesn't get into the nitty-gritty: Normal wear and tear is a term that Wisconsin law does not define.
(3)Protein Fat-Free Percentage, Protein Fat-Free Content, PFF Percentage, PFF Content or PFF of a product means the meat protein (indigenous to the raw, unprocessed pork cut) content expressed as a percent of the non-fat portion of the finished product.
Traditionally, tenderloin is the meat of choice for Stroganoff, and after testing out a few alternativesâstrip steak and ribeye along with more inexpensive cuts like flap meat, hanger, flank, and skirtâI decided to stick with tradition (flap meat and hanger came in a close second).